#VU99099 Buffer overflow in Linux kernel - CVE-2024-50015

Vulnerability identifier: #VU99099

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50015

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the ext4_handle_inode_extension(), ext4_dio_write_iter() and ext4_dax_write_iter() functions in fs/ext4/file.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/f8a7c342326f6ad1dfdb30a18dd013c70f5e9669
https://git.kernel.org/stable/c/8c30a9a8610c314554997f86370140746aa35661
https://git.kernel.org/stable/c/abfaa876b948baaea4d14f21a1963789845c8b4c
https://git.kernel.org/stable/c/5efccdee4a7d507a483f20f880b809cc4eaef14d
https://git.kernel.org/stable/c/a9f331f51515bdb3ebc8d0963131af367ef468f6
https://git.kernel.org/stable/c/ec0dd451e236c46e4858d53e9e82bae7797a7af5
https://git.kernel.org/stable/c/dda898d7ffe85931f9cca6d702a51f33717c501e

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.